S
M
T
W
T
F
S
29
53°
38°
30
53°
35°
1
45°
36°
2
53°
36°
3
49°
32°
4
40°
28°
5
43°
33°
6
42°
34°
7
43°
34°
8
42°
33°
9
43°
34°
10
45°
33°
11
39°
32°
12
40°
31°
13
43°
25°
14
37°
32°
15
46°
30°
16
43°
33°
17
47°
33°
18
48°
31°
19
44°
30°
20
39°
27°
21
34°
28°
22
47°
30°
23
45°
30°
24
36°
27°
25
32°
18°
26
34°
23°
27
38°
23°
28
35°
20°
29
32°
20°
30
33°
12°
31
32°
9°
1
28°
14°
2
27°
13°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
December Weather in Blackburn
Blackburn's December 2026 forecast shows daily high temperatures ranging from 27° to 53°, with overnight lows between 9° and 38°. The average high for December is 41° with an average low of 28°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how December weather will actually feel in Blackburn. See also: January | February | March.
